The buster-backports emacs should require an upgrade to the dictionaries-common package.

[Faheem Mitha <faheem@faheem.info>]

Hi,

When upgrading to Emacs 27.1 in buster-backports, I noticed that

    emacs foo.txt

no longer showed foo.txt. Also,

    emacs -q --debug-init foo.txt

gave the following error.

    debian-ispell-set-startup-menu: Symbolʼs value as variable is void:
    ispell-menu-map-needed

Then

    C-h f debian-ispell-set-startup-menu

gives

    debian-ispell-set-startup-menu is a compiled Lisp function in
    ʽdebian-ispell.elʼ.

    (debian-ispell-set-startup-menu &optional FORCE)

    Make sure ispell startup menu is ready after startup.
    To be run at ʽafter-init-hookʼ or at any time if FORCE is given.

And then

    dlocate debian-ispell.el
    dictionaries-common: /usr/share/dictionaries-common/site-elisp/debian-ispell.el

Upgrading dictionaries-common to the buster-backports version makes
the error go away, and now foo.txt also shows up.

I conclude that the emacs buster-backports emacs 27.1 installation should 
also force an upgrade of dictionaries-common to the buster-backports 
version.

Regards, Faheem Mitha